code: def test_number_response(self):
      response = self.df.chat(
          "How many loans are from men and have been paid off?",
          "number",
      )
      self.assertEqual(response, 247)
  
file_path: pandas-ai/integration/test_loan_payments.py
imports: import os
  import unittest
  from pandasai import SmartDataframe
  from pandasai.llm import OpenAI
label_desc: Use image node_id 2 for calling the TestLoanPayments obj's underlying member method code with example usage: obj.test_number_response() without return types